Alexander, Lloyd 21
Bulfinch, Thomas 15+1=16
Cook, Glen 21
Jemisin, N.K. 18-2=16
Kay, Guy Gavriel 20
LeGuin, Ursula 19
Lynch, Scott 20
McKillip, Patricia 21
Peake, Mervyn 20
Pratchett, Terry 18
Sanderson, Brandon 15
Wolfe, Gene 22
Slowly but surely, getting rid of Jemisin...
That works for me.